Wheel-hub plate.



M. CHRISTMAN.

WHEEL HUB PLATE.

APPLICATION FILED MAR. I. I9l6.

1,241,343. Patented Sept. 25, 1917.

2 SHEETS-SHEET I.

- M. CHRlSTMAN.

WHEEL HUB PLATE.

APPLICATION FILED MAR. b1916- 1,241 7 PatentedSept. 25, 1917. i I SHEET2- 2 SHEETS- amwm MATTHIAS CHRISTMAN, 0F SPRINGFIELD, MISSOURI.

WHEEL-HUB BLTE To all whom z'ti'may concern:

Be it known that l, Marrnms CHRIs'r- MAN, a citizen ofthe United States,residing at Springfield, in the county of Greene and State of Missouri,have invented new and usefullmprovements in Wheel-Hub Plates,

of which the following is a specification.

This invention is an improved wheel hub plate, the ohjectof theinvention being to provide an improved huh plate which will permitlubricant to pass directly therethrough so that friction will be reducedto the minimum.

This invention is an improvement on the wheel hub plate described andclaimed in the Letters Patent ofthe United States No. 1,028,677 grantedto me June 4th, 1912.

The invention consists in the construction,

combination and arrangement of devices hereinafter described andclaimed.

In the accompanying drawings Figure 1 is a vertical sectional view ofthe central portion of a locomotive driving wheel provided with a hubplate constructed and arranged in accordance with my invention.

Fig. 2 is an elevation, showing the inner side of the wheel and hubplate, and showing the wheel and axle in cross section.

Fig. 3 is a sectional view on a plane disclosing two of the dowel pins.

Fig. 4. is a detail perspective view of the hub plate.

Fig. 5 is a similar view of a modified form of the hub plate in whichthe latter is formed in separable sections.

In accordance with my invention the wheel 1 is provided on its innerside with an annular recess 2 which is concentric with and spaced fromthe axle 3. The wheel is provided with a threaded socket l for thereception of lubricant and with a passage 5 which leads from said socketto the recess 2. A hashing is screwed in the socket and is provided witha threaded hore in which a force plug is screwed.

The hearing or driving hex of the axle is indicated at 8. The huh plateQ is annular, tits in the recess 2 of the wheel, is arrangedSpecification of Letters Patent.

Patented Sept. as, set in Application filed March 1, 1916. Serial No.81,499.

directly. between the inner side oi the wheel and the outer face of thebearing or driving box and is provided with a series of lubricantreceiving pockets 10 which are openings that extend entirely through andacross the hub plate from its inner to its outer side. One of thesepockets registers with the passage 5. The hub plate is secured to thewheel for rotation th erewith by dowel pins 11 which are fitted inopenings 12, 13 with which the wheel and hub plate are respectivelyprovided.

lnthe' operation of my invention grease or lubricant is forced by theplug"? through the passage 5 and through one of the pockhits in the hubplate. Grease or lubricant that works out of the driving box cellarsfinds its way between the driving box and the hub plate and keeps thepockets of the hub plate full. Hence the Opposing iaces of the drivingor bearing box and the hub plate are kept lubricated and friction isre-. duced to'the minimum. Additional laloricant can be supplied at anytime to the wheel by first removing the ping-Z, as will be understood.

When the hub plate is to be attached to a new wheel the hub plate ismade of a single piece of material and is applied to the wheelbefore'the latter is pressed on the axle, it the hub plate is to heapplied to a wheel that has already been pressed on the axle the hubplate is made of two segments as shown in Fig. 5 to enable the haloplate to clear the axle, and be applied to the wheel, as will beunderstood.

Having thus described my invention what ll claim is..."-

in combination with a wheel and axle and with a bearing box for theaxle, said wheel having an annular recess concentric with and spacedfrom the axle and in the side of the wheel opposed to the hearing box,an annular hub plate fitted in said recess and of a thickness'exceedingthe depth oil said recess so that a space is formed around the axle andhetweenthe opposing sides of the wheel and hearin hox, said oh platehaving a series of elongated radially ar- Q menses ranged pocketsextending transversely enlubricant supply means onthe side toward tirelytherethrough and open at each side the wheel. ie of said hub plate, anddowel pins securing 'In testimony whereof I affix my signature said hubplate to the axle and arranged at in presence of two Witnesses.

5 points intermediate the pockets, the wheel MATTHIAS CHRISTMAN.

being provided with means to supply 1ubri- Witnesses: cant to one ofsaid pockets, the other pock- GEORGE A. MGLAUGHLIN.

ets being not in communication with the HARRY L. BIssET'r.

